Combination heating and cooking stove



April 19, 1938. L. A. ALTHOFF COMBINATION HEATING AND COOKING STOVEOriginal Filed Feb. 1, 1935 2 Sheets-Sheet 1 April 9 A. ALTHOFF2,114,772 v COMBINATION HEATING AND CQOKING STOVE Original Filed Feb. 1,1935 2 Sheets-Sheet 2 a l H Mr I m .75 5 59 g 9 v 17 A Q .73 T i d7 1' i36 1 i Patented Apr. 19, 1938 I V I 7 UNITED STATES PATENT OFFICEauar'n' Iawrence A. Althofl. Chicago, lll.

Original application February 1, i935. sci-iii No. 4,585. Divided andthis application November 29, 1935, Serial No. 52.270

*zcianns. (cries-ii) I This invention relates to a combination heatingtending to the front of the stove and providing a and cooking stove andmay be employed in conmeans for controlling the inlet of air nectionwith a single unit as illustrated herein The plate '22 is provided withair openings 33 or in combination with a cooking range or other justabove the box 25 to permit air to pass from form of stove. Thisapplication constitutes a the box upwardly along thesides 34 of theinner 5 division of my co pending application, Serial No. stove. Spacedinside of the walls 34 are air inlet 4,565, filed February 1, 1936, forCombination walls 35 which, together with walls 34, provide an heatingand cooking stove. air space directly above the slots 23. An ash Anobject of the invention is to provide a heatpper o bin i is sl dably ppted inside of ing stove of compact design having improved Walls 35 anpon t Plate c r 0 the 10 draft control, Another object is to provide aside walls 3 directly above the walls 35 are down-. heater of greaterefficiency which is conveniently ward y inwardly ed bellies desoperated, other bjects and advantages will ap- The baiiies 31 are spacedsuihciently above the pear lat r i the specification, walls 35 to permitair to pass under the inner The invention is illustrated, in a preferredfree e ds o t bullies a d t e upwardlythroush is.

embodiment, by the accompanying drawings, in th grate- 1 The grate ll ofwell-known construction is sup- Fig. 1 is a transverse sectional view ofa stove Ported above baflles 37 and fire-box 39 8-180 embodying myinvention, the section being taken well-known construction is'supportedp as indicated at line i of Fig. 3; Fig. 2, a bottom h r "I whi h are Scured to the walls 34 and lan detail view; and Fig. 3, a sectional view,the whi also m a portion f th crate- In view section being taken asindicated at line 3 of Fig. 1. of the well-known s ruct on of thefire-box In the illustration given, I provide an angle and s aa detaileddescription will not e v i n ba In supported upon legs ll, Clamped Therear top wall of the inner stove is adapted between the legs II and theangle iron base Ill to Serve as cooking 9 and is P ded With a 25 are thelower turned edges of metal side walls l2. removable circular P Theforward e d 1', The rear wall l3 rests upon the base in as shown the ovetop is in the form of a lift door 42 more clearly in Fig. 3, and isprovided with an which 15 hinged at its rear s d to an, interaperture llthrough which the outlet flue i5 mediate Portion 43 0f e tev D- The V tward end of the door 42 engages a front beam 30 The front of the rangeis provided with a d r or bar 44 which serves as a rest for the coal I].It will be observed that the door does not Scuttle When the (1001 42 israised- The fi e-b0! extend to the top of the outer frame casing, but 391S 8180 Provided with the 1181181 door 45 in terminates at a pointsubstantially flush with the the front Side of the inner stove top. Atop cover member ll, hingedly In order o support the p cove 8. I provide8 as connected at its rear end, is provided at its front latch member 45which 18 P ded with notches end with a depending wall i9 adapted to meetadapted to engage the 8 car e y the Outer substantially the top of thedoor H. The top stove frame, s Shown more l a ly n Fi 3. cover [8 ispreferably provided with air outlet n e Operation thelstove. quiredopenings 20, and the side walls l2 are also proamount of air may beadmitted through the 40 vided near their top with air openings 2|.bottom air box 25 by sliding the damper plate The inner stove ispreferably a unitary struc- 21 to the desired pos T ture resting uponthe angle iron frame It). The shown more clearly in Fig. 1, through theaperstructure may be of cast iron or any other suit-. tures 26 and thenthrough slots 33 in plate 32.

able construction. As shown more clearly in The air passes upwardlythrough passages formed 45 Figs. 1 and 3, the bottom wall 22 is providedat by walls 34 and 35 and then inwardly under its forward end with adepending flange 23 which baffles 31. The pro-warmed air then passesrests upon the angle iron Ill. The rear end of through the bottomofgrate 38 and directly into the bottom wall 22 is secured to the rearwall I! firebox 39. In the operation just described, if

60 by flanges 24. The bottom wall is provided near desired, air may beadmitted through the lower its forward end with a depending box 25-having portion of side walls 24 adjacent the walls 35, air openings 26therein controlled by the perfobut I prefer not to have the air enter ata point rated plate 21 which is slidably secured to box 25 thereabove.The inwardly turnedbailles 3'! preby screws 28 which engage slots 29 inplate 21. vent the air passages from being clogged with A pivoted bar 30is provided with a handle 3i exashes and at the same time, direct theashes 55 into the hopper 38. The air outside of the inner stove entersat the bottom of the range and passes along the sides I! in contact withthe heated walls 3| of the inner stove. The air then passes out ofopenings 20 at the top of the range and side openings 2|.

While in the foregoing illustrated description I have set forth a.specific preferred structure, it will be understood that considerablevariation may be made in the details of construction without departingfrom the spirit of my invention.

The foregoing detailed description has been given for cleamess oiunderstanding only, and no unnecessary limitations should be understoodtherefrom, but the appended claims should be construed as broadly aspermissible, in view of the prior art.

I claim:

1. In a stove, a casing providing a firebox, an ash drawer compartmenttherebelow and a bottom closed except as to its forward end portion,said forward end portion being provided with an air inlet, means forcontrolling said inlet, means cooperating with the sidewalls of saiddrawer compartment to provide with said casing vertical passages in thefront portion of the casing communicating with said bottom air inlet, anoutlet flue communicating with the rear portion of the firebox, an ashdrawer in said compartment, and downwardly inclined spreader guidescarried by said casing and extending over said air passages, said guidesextending substantially the length of said firebox, and being adapted todirect ashes into said drawer and spread the rising air from saidpassages inwardly and rearwardly below said firebox.

2. In a stove, a casing providing a firebox, an ash drawer compartmenttherebelow and a bottom closed except as to its forward end portion,said forward end portion being provided with an air inlet, a slidemounted in said casing for controlling said inlet, a lever having itsextreme rear end portion pivoted to the bottom casing wall and anintermediate portion pivotally connected to said slide, the forward freeend portion of said lever extending to the front of said stove, anoutlet flue communicating with the rear of said firebox, meanscooperating with the sidewalls of said drawer compartment to providewith said casing vertical passages in the front portion of the casingcommunicating with said bottom air inlet, an wh drawer in'saidcompartment, and downwardly inclined spreader guides carried by saidcasing and extending below and the length of said firebox, said guidesbeing adapted to direct ashes into said drawer and spread the rising airinwardly and to the rear of said vertical air passages.

LAWRENCE A. ALTHOFF.

